11782270979 has 2 divisors, whose sum is σ = 11782270980. Its totient is φ = 11782270978.

The previous prime is 11782270939. The next prime is 11782270987. The reversal of 11782270979 is 97907228711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11782270979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11782270979.

It is not a weakly prime, because it can be changed into another prime (11782270939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891135489 + 5891135490.

It is an arithmetic number, because the mean of its divisors is an integer number (5891135490).

Almost surely, 2^11782270979 is an apocalyptic number.

11782270979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11782270979 is an equidigital number, since it uses as much as digits as its factorization.

11782270979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 53.

The spelling of 11782270979 in words is "eleven billion, seven hundred eighty-two million, two hundred seventy thousand, nine hundred seventy-nine".